EP0771655B1 - Kurzschlussnachweisschaltung für Tintenstrahldrucker - Google Patents

Kurzschlussnachweisschaltung für Tintenstrahldrucker Download PDF

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Publication number
EP0771655B1
EP0771655B1 EP19960307865 EP96307865A EP0771655B1 EP 0771655 B1 EP0771655 B1 EP 0771655B1 EP 19960307865 EP19960307865 EP 19960307865 EP 96307865 A EP96307865 A EP 96307865A EP 0771655 B1 EP0771655 B1 EP 0771655B1
Authority
EP
European Patent Office
Prior art keywords
ink
charge
circuit
electrodes
detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19960307865
Other languages
English (en)
French (fr)
Other versions
EP0771655A3 (de
EP0771655A2 (de
Inventor
Randy L. Fagerquist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Versamark Inc
Original Assignee
Kodak Versamark Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kodak Versamark Inc filed Critical Kodak Versamark Inc
Publication of EP0771655A2 publication Critical patent/EP0771655A2/de
Publication of EP0771655A3 publication Critical patent/EP0771655A3/de
Application granted granted Critical
Publication of EP0771655B1 publication Critical patent/EP0771655B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/07—Ink jet characterised by jet control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/125—Sensors, e.g. deflection sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers
    • B41J2002/1853—Ink-collectors; Ink-catchers ink collectors for continuous Inkjet printers, e.g. gutters, mist suction means

Claims (4)

  1. Tintenstrahl-Drucksystem, enthaltend einen Druckkopf mit einer Fangeinrichtung (26) und einer Aufladeplatte (18), die zugehörige Aufladeleitungen (16) aufweist, gekennzeichnet durch ein Erfassungsmittel zum Erfassen von Tinte in dem Bereich der Aufladeplatte (18), wobei die Erfassungsmittel enthalten:
    zumindest eine Erfassungselektrode (10), die unterhalb der Aufladeplatte (18) und ungefähr entlang der Länge der Aufladeplatte (18) angeordnet ist, und
    eine Schaltung (14) zum Überwachen der elektrischen Leitfähigkeit zwischen der Erfassungselektrode (10) und einem weiteren Punkt;
    dadurch gekennzeichnet, dass die zumindest eine Erfassungselektrode (10) dicht zueinander angeordnete, kontinuierlich parallel verlaufende Leiter aufweist, die in unmittelbarer Nähe zu den Aufladeelektroden der Aufladeplatte (18) angeordnet sind.
  2. System nach Anspruch 1, dadurch gekennzeichnet, dass die Erfassungselektrode (10) zumindest eine Kurzschluss-Erfassungselektrode aufweist.
  3. System nach Anspruch 2, dadurch gekennzeichnet, dass zumindest eine Kurzschluss-Erfassungselektrode (10) auf einer Auffangoberfläche (32) angeordnet ist.
  4. System nach einem der vorstehenden Ansprüche, wobei die Schaltung (14) zum Überwachen der Leitfähigkeit die Leitfähigkeit zwischen den Erfassungselektroden (10) überwacht.
EP19960307865 1995-10-31 1996-10-30 Kurzschlussnachweisschaltung für Tintenstrahldrucker Expired - Lifetime EP0771655B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US55095895A 1995-10-31 1995-10-31
US550958 1995-10-31

Publications (3)

Publication Number Publication Date
EP0771655A2 EP0771655A2 (de) 1997-05-07
EP0771655A3 EP0771655A3 (de) 1998-09-16
EP0771655B1 true EP0771655B1 (de) 2002-09-25

Family

ID=24199263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960307865 Expired - Lifetime EP0771655B1 (de) 1995-10-31 1996-10-30 Kurzschlussnachweisschaltung für Tintenstrahldrucker

Country Status (4)

Country Link
EP (1) EP0771655B1 (de)
JP (1) JP3946800B2 (de)
CA (1) CA2189284A1 (de)
DE (1) DE69623907T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7086717B2 (en) 1998-10-16 2006-08-08 Silverbrook Research Pty Ltd Inkjet printhead assembly with an ink storage and distribution assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1013426B1 (de) * 1998-12-14 2007-12-19 Eastman Kodak Company Kurzschlussnachweis für einen Tintenstrahldruckkopf
EP1129854A1 (de) * 2000-03-03 2001-09-05 Domino Printing Sciences Plc Durchschlagdetektor
US7144103B2 (en) 2004-05-05 2006-12-05 Eastman Kodak Company Beveled charge structure
US8777364B2 (en) 2010-07-30 2014-07-15 Hewlett-Packard Development Company, L.P. Short circuit detection in an inkjet printhead

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631550A (en) * 1985-08-15 1986-12-23 Eastman Kodak Company Device and method for sensing the impact position of an ink jet on a surface of an ink catcher, in a continuous ink jet printer
JP2724998B2 (ja) * 1985-10-14 1998-03-09 セイコーエプソン株式会社 インク滴検出装置
US4928113A (en) * 1988-10-31 1990-05-22 Eastman Kodak Company Constructions and fabrication methods for drop charge/deflection in continuous ink jet printer
US4994821A (en) * 1989-09-18 1991-02-19 Eastman Kodak Company Continuous ink jet printer apparatus having improved short detection construction
US5381099A (en) * 1993-03-02 1995-01-10 Unisys Corporation Streak detection for ink-jet printer with obnically connected segment pairs
DE69609248T2 (de) * 1995-05-26 2001-03-08 Scitex Digital Printing Inc Verfahren zur Herstellung von Ladungselektroden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7086717B2 (en) 1998-10-16 2006-08-08 Silverbrook Research Pty Ltd Inkjet printhead assembly with an ink storage and distribution assembly

Also Published As

Publication number Publication date
EP0771655A3 (de) 1998-09-16
EP0771655A2 (de) 1997-05-07
CA2189284A1 (en) 1997-05-01
DE69623907D1 (de) 2002-10-31
DE69623907T2 (de) 2003-08-07
JP3946800B2 (ja) 2007-07-18
JPH09201974A (ja) 1997-08-05

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